Rough idle, Stalling out after CAI Install

cdana44 · 02-20-2021, 01:18 PM

Recently had a shop install headers and flex fuel kit on my car. Drove it home from the shop no issues at all. A few days later I found a Rotofab dry intake online and installed it myself...

Now the car will start up just fine but after a few seconds it starts to shake, idle very rough and eventually stall out. I'm in the process of remote tuning it with Pray but only have the base tune he sent. I've double checked all the hose connections, disconnected my battery for a few minutes, MAF is installed the correct direction but still has the same issue.

Any ideas on what else I should look at would be greatly appreciated!

Gunkk · 02-20-2021, 04:07 PM

A few guesses:
1. You have an air leak between the MAF and the throttle body.
2. You didn't plug the MAF back in, damaged it, or damaged its wiring.
3. Did you check codes?

cdana44 · 02-21-2021, 01:01 PM

Quote:

Originally Posted by Gunkk

A few guesses:
1. You have an air leak between the MAF and the throttle body.
2. You didn't plug the MAF back in, damaged it, or damaged its wiring.
3. Did you check codes?

Could an air leak at the pcv hose barb be the problem?

I don’t have any codes related to the MAF. If it was an issue with the MAF there would be a code correct?

Vodkapocalypse · 11-10-2021, 12:37 PM

Were you able to resolve your problem?

ctrlz · 11-10-2021, 01:41 PM

PCV connection to intake is behind the MAF, therefore any leak will bring in unmetered air.
See pix:
https://www.camaro6.com/forums/showthread.php?t=572714

brokedad · 11-10-2021, 01:56 PM

Are you sure the MAF is installed with the correct direction of airflow going through it. Thats exactly what what mine did when I was trying to put it back together really quick and wasn't paying attention. It would take two minutes to flip it and see.

Spaceme1117 · 11-10-2021, 05:25 PM

You probably still have an air leak at one or multiple connections. I have a Rotofab, installed it correctly and all the clamps were tight. I had to replace the clamps with much higher quality Mishimoto clamps. No problems since.

SomeGeoffGuy · 11-10-2021, 10:39 PM

Quote:

Originally Posted by Vodkapocalypse

Were you able to resolve your problem?

Well, he logged on in April. Maybe he has his notifications on?

-Geoff

02-20-2021, 01:18 PM	#1
cdana44 Drives: 2017 1SS Join Date: Jan 2021 Location: USA Posts: 9	Rough idle, Stalling out after CAI Install Recently had a shop install headers and flex fuel kit on my car. Drove it home from the shop no issues at all. A few days later I found a Rotofab dry intake online and installed it myself... Now the car will start up just fine but after a few seconds it starts to shake, idle very rough and eventually stall out. I'm in the process of remote tuning it with Pray but only have the base tune he sent. I've double checked all the hose connections, disconnected my battery for a few minutes, MAF is installed the correct direction but still has the same issue. Any ideas on what else I should look at would be greatly appreciated!

02-20-2021, 04:07 PM	#2
Gunkk Thank you Al Oppenheiser! Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017 Location: Sarasota, FL Posts: 4,973 View My Garage	A few guesses: 1. You have an air leak between the MAF and the throttle body. 2. You didn't plug the MAF back in, damaged it, or damaged its wiring. 3. Did you check codes?

11-10-2021, 12:37 PM	#4
Vodkapocalypse Drives: Chevy Camaro Join Date: Nov 2021 Location: VA Posts: 8	Were you able to resolve your problem?

11-10-2021, 01:41 PM	#5
ctrlz Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016 Location: Ocean City, NJ Posts: 3,174	PCV connection to intake is behind the MAF, therefore any leak will bring in unmetered air. See pix: https://www.camaro6.com/forums/showthread.php?t=572714

11-10-2021, 01:56 PM	#6
brokedad Drives: 2017 Camaro ss Join Date: Jun 2020 Location: Omaha Posts: 43	Are you sure the MAF is installed with the correct direction of airflow going through it. Thats exactly what what mine did when I was trying to put it back together really quick and wasn't paying attention. It would take two minutes to flip it and see.

11-10-2021, 05:25 PM	#7
Spaceme1117 Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019 Location: Erlanger, Kentucky 41018 Posts: 815	You probably still have an air leak at one or multiple connections. I have a Rotofab, installed it correctly and all the clamps were tight. I had to replace the clamps with much higher quality Mishimoto clamps. No problems since.

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